Enhancement of magnetic circular dichroism in bi-layered ZnO-Bi:YIG thin films

Mito, Saeko; Shiotsu, Yusaku; Sasano, Junji; Takagi, Hiroyuki; Inoue, M.

doi:10.1063/1.4976952

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…Furthermore, this change in MO can potentially be controlled by voltage because the exciton resonance in semiconductor systems can be altered via an electro-optic effect [11][12][13][14]. The modulation of the Faraday rotation and MCD was about 20 times bigger than that of a previous electroless-plated ZnO study [10]. This change could be due to the fabrication method being changed to a sputtering method, consequently increasing the density of the ZnO film.…”

Section: Methodsmentioning

confidence: 99%

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Influence of Sputtered ZnO and Al:ZnO Top Layers on Magneto-Optic Responses of Yttrium Iron Garnet Films

et al. 2018

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Zinc oxide (ZnO) is a promising material for combining with magneto-optic (MO) materials because it can propagate stable exciton-polaritons, with velocities considerably lower than that of photons in a vacuum. This study investigated the influence of sputtered ZnO and Al:ZnO top layers on MO responses of a bismuth-substituted yttrium iron garnet (Bi:YIG) film. The ZnO top layer modulated the Faraday rotation and magnetic circular dichroism (MCD) of the Bi:YIG around the exciton resonance wavelength of ZnO at 369 nm. Furthermore, Al-substituted ZnO, which is a conductive ZnO, also changed the MO effects around the exciton resonance wavelength. These results imply that the exciton-polaritons in ZnO affect the MO interaction, because of their considerably low group velocity. The results suggest potential for controlling the MO response via excitons.

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Section: Methodsmentioning

confidence: 99%

“…In a previous study, we deposited ZnO on bismuth-substituted yttrium iron garnet (Bi:YIG) using an electroless plating method. The electroless-plated ZnO slightly changed the MO responses [10].…”

Section: Introductionmentioning

confidence: 99%

Influence of Sputtered ZnO and Al:ZnO Top Layers on Magneto-Optic Responses of Yttrium Iron Garnet Films

et al. 2018

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Solenoid model for visualizing magnetic flux leakage testing of complex defects

Cheng

Wang

et al. 2018

NDT & E International

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Faraday Effect in Bi-Periodic Photonic-Magnonic Crystals

et al. 2017

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We present a theoretical investigation of the polarization plane rotation at light transmission -Faraday effect, through onedimensional multilayered magneto-photonic systems consisting of periodically distributed magnetic and dielectric layers. We calculate Faraday rotation spectra of photonic-magnonic crystals, where cell (or supercell) is composed of magnetic layer and dielectric layer (or section of dielectric photonic crystal). We found that the Faraday rotation of p-polarized incident light is increasing in the transmission band with the number of magnetic supercells. The increase of Faraday rotation is observed also in vicinity of the band-gap modes localized in magnetic layers but the maximal polarization plane rotation angles are reached at minimal transmittivity. We show that presence of linear magneto-electric interaction in the magnetic layers leads to significant increase of the Faraday rotation angles of spolarized incident light in the vicinity of the fine-structured modes inside the photonic-band-gap.Index Terms-Faraday effect, magnetic photonic crystal, photonic-magnonic crystal, polarization plane rotation.

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Enhancement of magnetic circular dichroism in bi-layered ZnO-Bi:YIG thin films

Cited by 3 publications

References 16 publications

Influence of Sputtered ZnO and Al:ZnO Top Layers on Magneto-Optic Responses of Yttrium Iron Garnet Films

Influence of Sputtered ZnO and Al:ZnO Top Layers on Magneto-Optic Responses of Yttrium Iron Garnet Films

Solenoid model for visualizing magnetic flux leakage testing of complex defects

Faraday Effect in Bi-Periodic Photonic-Magnonic Crystals

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